This solves the problem of external poll message IDs not being globally
unique by simply appending the event year. This means that autorenew poll
messages will increment by one every year, so they will always be unique.
This also requires no data schema changes, and thus most importantly, no
data migration.
Incoming requests lacking this new year field will continue to work for
now for backwards compatibility reasons. This is possible because we don't
actually use the year for anything.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=178012685
This change renames directories in preparation for the great package
rename. The repository is now in a broken state because the code
itself hasn't been updated. However this should ensure that git
correctly preserves history for each file.
